Hong-jo experiences a vision after Sin-yu rescues her from a dangerous situation. Hong-jo discovers the true reason behind Sin-yu's worsening symptoms.

Upon realizing the truth about their history, Hong-jo takes distance from Sin-yu — until a frightening incident brings him closer to her.

As Hong-jo navigates a devastating situation, her past life with Sin-yu comes to light. But just as the worst seems to be over, a threat remains.